diff --git a/wp-admin/includes/privacy-tools.php b/wp-admin/includes/privacy-tools.php
index faa5d8b9ac..2d35984499 100644
--- a/wp-admin/includes/privacy-tools.php
+++ b/wp-admin/includes/privacy-tools.php
@@ -658,7 +658,34 @@ All at ###SITENAME###
 	$content = str_replace( '###SITENAME###', $site_name, $content );
 	$content = str_replace( '###SITEURL###', esc_url_raw( $site_url ), $content );
 
-	$mail_success = wp_mail( $request_email, $subject, $content );
+	$headers = '';
+
+	/**
+	 * Filters the headers of the email sent with a personal data export file.
+	 *
+	 * @since 5.4.0
+	 *
+	 * @param string|array $headers    The email headers.
+	 * @param string       $subject    The email subject.
+	 * @param string       $content    The email content.
+	 * @param int          $request_id The request ID.
+	 * @param array        $email_data {
+	 *     Data relating to the account action email.
+	 *
+	 *     @type WP_User_Request $request           User request object.
+	 *     @type int             $expiration        The time in seconds until the export file expires.
+	 *     @type string          $expiration_date   The localized date and time when the export file expires.
+	 *     @type string          $message_recipient The address that the email will be sent to. Defaults
+	 *                                              to the value of `$request->email`, but can be changed
+	 *                                              by the `wp_privacy_personal_data_email_to` filter.
+	 *     @type string          $export_file_url   The export file URL.
+	 *     @type string          $sitename          The site name sending the mail.
+	 *     @type string          $siteurl           The site URL sending the mail.
+	 * }
+	 */
+	$headers = apply_filters( 'wp_privacy_personal_data_email_headers', $headers, $subject, $content, $request_id, $email_data );
+
+	$mail_success = wp_mail( $request_email, $subject, $content, $headers );
 
 	if ( $switched_locale ) {
 		restore_previous_locale();
diff --git a/wp-includes/user.php b/wp-includes/user.php
index 18fd0346ef..1838a71d73 100644
--- a/wp-includes/user.php
+++ b/wp-includes/user.php
@@ -3294,7 +3294,32 @@ All at ###SITENAME###
 	 */
 	$subject = apply_filters( 'user_request_confirmed_email_subject', $subject, $email_data['sitename'], $email_data );
 
-	$email_sent = wp_mail( $email_data['admin_email'], $subject, $content );
+	$headers = '';
+
+	/**
+	 * Filters the headers of the user request confirmation email.
+	 *
+	 * @since 5.4.0
+	 *
+	 * @param string|array $headers    The email headers.
+	 * @param string       $subject    The email subject.
+	 * @param string       $content    The email content.
+	 * @param int          $request_id The request ID.
+	 * @param array        $email_data {
+	 *     Data relating to the account action email.
+	 *
+	 *     @type WP_User_Request $request     User request object.
+	 *     @type string          $user_email  The email address confirming a request
+	 *     @type string          $description Description of the action being performed so the user knows what the email is for.
+	 *     @type string          $manage_url  The link to click manage privacy requests of this type.
+	 *     @type string          $sitename    The site name sending the mail.
+	 *     @type string          $siteurl     The site URL sending the mail.
+	 *     @type string          $admin_email The administrator email receiving the mail.
+	 * }
+	 */
+	$headers = apply_filters( 'user_request_confirmed_email_headers', $headers, $subject, $content, $request_id, $email_data );
+
+	$email_sent = wp_mail( $email_data['admin_email'], $subject, $content, $headers );
 
 	if ( $email_sent ) {
 		update_post_meta( $request_id, '_wp_admin_notified', true );
@@ -3440,7 +3465,32 @@ All at ###SITENAME###
 	$content = str_replace( '###PRIVACY_POLICY_URL###', $email_data['privacy_policy_url'], $content );
 	$content = str_replace( '###SITEURL###', esc_url_raw( $email_data['siteurl'] ), $content );
 
-	$email_sent = wp_mail( $user_email, $subject, $content );
+	$headers = '';
+
+	/**
+	 * Filters the headers of the data erasure fulfillment notification.
+	 *
+	 * @since 5.4.0
+	 *
+	 * @param string|array $headers    The email headers.
+	 * @param string       $subject    The email subject.
+	 * @param string       $content    The email content.
+	 * @param int          $request_id The request ID.
+	 * @param array        $email_data {
+	 *     Data relating to the account action email.
+	 *
+	 *     @type WP_User_Request $request            User request object.
+	 *     @type string          $message_recipient  The address that the email will be sent to. Defaults
+	 *                                               to the value of `$request->email`, but can be changed
+	 *                                               by the `user_erasure_fulfillment_email_to` filter.
+	 *     @type string          $privacy_policy_url Privacy policy URL.
+	 *     @type string          $sitename           The site name sending the mail.
+	 *     @type string          $siteurl            The site URL sending the mail.
+	 * }
+	 */
+	$headers = apply_filters( 'user_erasure_complete_email_headers', $headers, $subject, $content, $request_id, $email_data );
+
+	$email_sent = wp_mail( $user_email, $subject, $content, $headers );
 
 	if ( $switched_locale ) {
 		restore_previous_locale();
@@ -3702,7 +3752,31 @@ All at ###SITENAME###
 	 */
 	$subject = apply_filters( 'user_request_action_email_subject', $subject, $email_data['sitename'], $email_data );
 
-	$email_sent = wp_mail( $email_data['email'], $subject, $content );
+	$headers = '';
+
+	/**
+	 * Filters the headers of the email sent when an account action is attempted.
+	 *
+	 * @since 5.4.0
+	 *
+	 * @param string|array $headers    The email headers.
+	 * @param string       $subject    The email subject.
+	 * @param string       $content    The email content.
+	 * @param int          $request_id The request ID.
+	 * @param array        $email_data {
+	 *     Data relating to the account action email.
+	 *
+	 *     @type WP_User_Request $request     User request object.
+	 *     @type string          $email       The email address this is being sent to.
+	 *     @type string          $description Description of the action being performed so the user knows what the email is for.
+	 *     @type string          $confirm_url The link to click on to confirm the account action.
+	 *     @type string          $sitename    The site name sending the mail.
+	 *     @type string          $siteurl     The site URL sending the mail.
+	 * }
+	 */
+	$headers = apply_filters( 'user_request_action_email_headers', $headers, $subject, $content, $request_id, $email_data );
+
+	$email_sent = wp_mail( $email_data['email'], $subject, $content, $headers );
 
 	if ( $switched_locale ) {
 		restore_previous_locale();
diff --git a/wp-includes/version.php b/wp-includes/version.php
index b18ff25f2a..88b159a9c0 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.4-alpha-47278';
+$wp_version = '5.4-alpha-47279';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.